Some say yes, I personally wouldn't. The reason being is that as the filters run the BB will get into the system/filters as it cycles. Only disagreement towards this has been saying that "it saves money", and I just haven't noticed a change in my electric bill since starting my tank...and im pushing alot of power.
Also, when you add water ontop of your sand, if you lay a plastic bag from walmart or where ever down ontop of the sand and pour gently, you will not have stir up. It will get alittle cloudy...but nothing to major.